Gas ignition device



April 18, 1933. s. PERRY GAS IGNITION DEVICE Original Filed Jan. 21, 1929 2 Sheets-Sheet 1 n D QN April 18, 1933. s. PERRY GAS IGNITION DEVICE Original Filed Jan. 21; 1929 2 Sheets-Sheet 2 Patented Apr. 18, 1933 UNITED STATES PATENT. OFFICE STANLEY PRRY, OI CHICAGO, ILLINOIS, ASSIGNOR TO AUTOMATIC BURNER CORPORA- TION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS GAS IGNITION DEVICE I Original application filed January 2 1, 1929, Serial No. 333,832. Divided and this application filed January My invention relates more particularly to gas-ignition means of the type comprising a pilot burner at which a flame is maintained and a flare-jet burner which is intermittently supplied with gas ignited by the pilot burner, such means being used especially in connection with oil-burners, the present application being a division of my pending application for Letters Patent Serial No.- 333,- 832, filed January 21, 1929, which has resulted in Patent No. 1,891,835, issued December 20,1932.

My primary object is to provide a novel. simple compact and economical construction of ignition means of the type referred to.

Referring to the accompanying drawings:

Figure 1 is a view in elevation of a furnace equipped with an oil-burner having an ignition device constructed in accordance w1th my invention, certain parts of the structure shown in this figure being represented in sectional elevation; and

Figure 2, an enlarged view in vertical sectional elevation of my improved ignition device and the means for supplying gas thereto.

Referring to the particular construction shown, 3 represents a furnace having acombustion chamber 4 the bottom of which is formed of a plate 5 containing an aperture 6 lined by a flange 7 of a ring 7 Located inthe aperture 6 is an oil burner- 8 which may be of any-desirable constructionathat shown, by way of example, being a type comprising a rotary atomizer 9 to which oil is fed through a pipe-1O and which is'rotated by a motor 11, the atomized oil issuing from the rim 9 of the atomizer.

The burner structure 8 is supported by legs 12 which may be provided in a rectangular arrangement, these legs also supporting a frame 13 carrying certain of the burner-controlling mechanism represented generally at 14.

Referring now to my improved device for igniting the fuel issuing from the atomizer 9, and represented at 15, it comprises a member 16 formed of a block 17 a shell 18 of magnetic material secured to the lower end of the 7 block 17 and a second, hollow, member 19 secured to the lower end of the shell 18, this Serial No. 511,430.

structure being mounted on the upper end of a post 20 secured to the frame 13. The block 17 contains a chamber 21 into which a pipe 22 leading from any suitable constant source of gas supply, opens, between the top and. bottom of this chamber. The block 16 also contains a passage 23 which opens through a constricted portion 24:, into the chamber 21, this passage being equipped with a needle-valve 25 for controlling the amount of gas fed into the passage 23 from which latter it discharges into a gas-pilot tube 26 which extends at its upper end adjacent the periphery of the atomizer 9, the pilot tube 26 being shown as surrounded by a sleeve 27.

The ignition means also comprises a flarejet device 28 shown as in the form of a pipe 29 projecting upwardly above the upper end of the pilot-tube 26 with its upper extremity deflected to extend substantially horizontally as represented at 30 and in such position that the gas issuing from the pipe 29 will be directedacross the flame at the pilot-tube 26 and towards the burner-structure, the gas issuing from the pipe 29 becoming ignited by the pilot-flame and-in turn igniting the fuel discharged from the atomizer 9.

The pipe 29 opens at its lower end into the upper end of a passage 31 in the block 17,

the lower end of this passage opening into a so passage 32 communicating with the bottom of the chamber 21-, with a tapered valve-seat 33 therebetween, controlled by a ball-valve 34 which, when in engagement with the seat 33, closes the passage 31v to the chamber 21.

In the use of oil-burner structures in accordance with common practice, gas is supplied to the flare-jet 28 upon the starting of the supplying of oil to the burner, the supply of gas to the flare-jet being discontinued after ignition of the fuel issuing from the burner, this being commonly effected by mechanism operated automatically upon starting the flow of oil to the burner and commonly involving an electric valve.

In the arrangement shown such an electric valve is employed, this valve comprising a solenoid 35 which is located within the shell 18 and is energized by current supplied through the wires 36 and 37, as, for example,

in accordance with common practice, the solenoid containing a sleeve 38 of nonmagnetic material in which the core 39 of the solenoid is reciprocable, the core being connected by a pin 40 with the lower end of a stem 41 secured to, and depending from, the ball-valve 34.

From the foregoing description, it will be understood that when the solenoid 35 is energized the valve 34 is raised from the seat 33 and gas thereupon flows to the flare-jet 28 for the purpose above stated.

Provision of the constant pilot and the flare-jet device, together with the valve controlling the supplying of gas to the flare-jet and the controlling mechanism for the valve 3d, as a unitary device, presents considerable advantage over prior structures wherein these elements are not combined, certain of which are compactness of structure, economy and rapidity of installation and simplicity of structure.

While I have illustrated and described a particular construction embodying my invention, I do not wish to be understood as intending to limit it thereto as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a gas ignition device, a body having a chamber, a pilot member on the body communicating with the chamber, -'a flare jet on the body coactin g with said pilot member, said body having a passage extending from said chamber to the flare jet, said body having a passage for the supply of gas to the chamber, a valve in the chamber normally closing the passage to the flare jet, and electro-magnetic means operable to actuate the valve including a core in depending relation to the valve, a winding about the core, a sleeve extending downwardly from the body surrounded by the winding and in which the core operates, a magnetic shell surrounding the winding, a supporting member on the opposite side of the winding to said body, said body and supporting member engaging the shell at opposite ends of the latter, and means securing the supporting member to the sleeve.

2. In a gas ignition device, a body having a chamber adapted for communication with a source of gas supply, a pilot member extending from said body and communicating with said chamber, a flare jet coacting with the pilot member, said body having a passageway extending downwardly from the base of said chamber and thence upwardly to the flare jet, a ball valve in the base of said chamber normally closing the last mentioned passageway, a sleeve depending from the body, a core within the sleeve and connected to said ball valve, and an electro-magnetic winding surrounding the sleeve and coacting with the core whereby the ball valve may be raised and lowered with respect to its seat to enable gas to pass from said chamber to the flare jet.

STANLEY PERRY. 

